您的投票很重要！在您投票查看年度Report，1234567890123456789012345678901234567890,12345678901234567890、12345678901234567890、12345678901234567890、12345678901234567890、12345678901234567890123456789012345678901234567890之前，請在網上獲得通知，或者您可以通過以下方式獲得一份免費的紙質投票材料。如果您想索取投票材料的副本，您可以(1)訪問www.ProxyVote.com，(2)致電1-800-579-1639或(3)發送電子郵件至sendMaterial@proxyvote.com。如果發送電子郵件，請在主題行中包含您的控制編號(如下所示)。 智能手機用户將相機指向此處並投票，無需輸入控制編號 有關完整信息和投票，請訪問www.ProxyVote.com Control# flashid-job# Ricky CampanaP.O.Box 123456Suite 50051 Mercedes WayEdgewood，NY 117171 of 2322,224148,29430# XXXX XXXX DIGI International Inc.2023年年會投票截止日期：1月26日美國東部時間2023年11：59 PM DIGI International Inc.收信人：總法律顧問辦公室9350 Excelsior Blvd.，Suite 700 MN 55343 您投資了DIGI International Inc.投票時間到了！ 您有權對在年會上提交的提案進行投票。 這是一項重要通知，涉及2023年1月27日召開的股東會議的代理材料的可用性。 在線查看通知和代理聲明、年度報告，或者您可以在2023年1月13日之前通過 請求獲得材料的免費紙質或電子郵件副本。 如果您希望請求本次和/或未來股東會議的材料副本， 您可以(1)訪問www.ProxyVote.com，(2)致電1-800-579-1639或(3)發送電子郵件至sendMaterial@proxyvote.com。如果發送 電子郵件，請在主題行中包含您的控制號碼(如下所示)。 除非提出請求，否則您不會收到 紙質或電子郵件副本。 在會議上進行虛擬投票* 2023年1月27日下午3：30 Cst 虛擬at： www.virtualshareholdermeeting.com/DGII2023 *Please查看會議材料，瞭解有關會議出席的任何特殊要求。

THIS IS NOT A VOTABLE BALLOTThis is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Vote at www.ProxyVote.com Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. Voting ItemsBoard RecommendsFLASHID-JOB#Control # XXXX XXXX XXXX XXXXTHE COMPANY NAME INC. - COMMON ASDFGHJKL 123456789.1234THE COMPANY NAME INC. - CLASS A 123456789.1234THE COMPANY NAME INC. - CLASS B 123456789.1234THE COMPANY NAME INC. - CLASS C 123456789.1234THE COMPANY NAME INC. - CLASS D 123456789.1234THE COMPANY NAME INC. - CLASS E 123456789.1234THE COMPANY NAME INC. - CLASS F 123456789.1234THE COMPANY NAME INC. - 401 K 123456789.1234SHARE CLASSES REPRESENTED FOR VOTING This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. 1. Election of Directors Nominees: 1a. Satbir Khanuja, Ph.D. For 1b. Ronald E. Konezny For 2. Company proposal to approve, on a non-binding advisory basis, the compensation paid to named executive officers. For 3. Company proposal to ratify the appointment of Deloitte & Touche LLP as independent registered public accounting firm of the company for the fiscal year ending September 30, 2023. For 4. Company proposal to approve the amendment and restatement of the Digi International Inc. 2021 Omnibus Incentive Plan. For NOTE: If any other matters properly come before the annual meeting calling for a vote of stockholders, the shares represented by this proxy will be voted by the persons named herein in accordance with their best judgment.